Add 84/18 and 2/45
1st number: 4 12/18, 2nd number: 2/45
84/18 + 2/45 is 212/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
84/18 = 84 × 5/18 × 5 = 420/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
2/45 = 2 × 2/45 × 2 = 4/90 - Add the two like fractions:
420/90 + 4/90 = 420 + 4/90 = 424/90 - 424/90 simplified gives 212/45
- So, 84/18 + 2/45 = 212/45
In mixed form: 432/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/18+4/45 84/36+2/45 84/18+2/90 84/18+6/45 84/54+2/45 84/18+10/45 84/90+2/45 84/18+14/45